import {Card,Breadcrumb,Form,Button,
  Radio,Input,Upload,Space,Select
} from 'antd'
import { PlusOutlined } from '@ant-design/icons'
import {useNavigate,Link, useSearchParams } from 'react-router-dom'
import './index.scss'

import ReactQuill from 'react-quill'
import 'react-quill/dist/quill.snow.css'
import { useEffect, useState } from 'react'
import { updateArticleAPI,createArticleAPI ,getArticleById} from '@/apis/article'
import { message } from 'antd'
import { useChannel } from '@/hooks/useChannel'
const { Option } = Select
const Publish = () => {
  const navigate = useNavigate()
  // 频道列表
  const { channelList } = useChannel()
  //提交表单
  const onFinish=(formValue)=>{
    console.log(formValue)
    // 校验封面类型imageType是否和实际的图片列表imageList数量是相等的
    if (imageList.length !== imageType) return message.warning('封面类型和图片数量不匹配')    
    const { title, content, channel_id } = formValue    
    //1.按照接口文档的格式处理收集到的表单数据
    const reqData = {
      title,
      content,
      cover: {
        type: imageType, // 封面模式,
        // 编辑的时候需要做处理
        images: imageList.map(item => {
          if (item.response) {
            //新增时获取图片
            return item.response.data.url
          } else {
            //修改时获取图片
            return item.url
          }
        }) // 图片列表
      },
      channel_id
    }
    //2.调用接口提交
    //处理调用不同的接口，新增和修改
    if(articleId){
      //更新接口
      updateArticleAPI({ ...reqData, id: articleId })
      message.success('文章更新成功！');
      navigate('/article')
    }else{
      //创建接口
      createArticleAPI(reqData)
      message.success('文章创建成功！');
      navigate('/article')
    }
    
  }
  // 上传回调
  const [imageList, setImageList] = useState([])
  const onChange = (value) => {
    console.log('正在上传中', value)
    setImageList(value.fileList)
  }
  // 切换图片封面类型
  const [imageType, setImageType] = useState(0)
  const onTypeChange = (e) => {
    console.log('切换封面了', e.target.value)
    setImageType(e.target.value)
  }
  //回填数据
  const [searchParams] = useSearchParams()
  const articleId = searchParams.get('id')
  // 获取实例
  const [form] = Form.useForm()
  useEffect(()=>{
    //通过ID获取数据
    async function getArticleDetail (){
      //得到查询的详情
      const res = await getArticleById(articleId)
      const data = res.data
      const { cover } = data
      form.setFieldsValue({
        ...data,
        type: cover.type
      })
      // 回填图片列表
      setImageType(cover.type)
      // 显示图片({url:url})
      setImageList(cover.images.map(url => {
        return { url }
      }))
    }
    // 只有有id的时候才能调用此函数回填
    if (articleId) {
      getArticleDetail()
    }
    //调用实例方法完成回填
  },[articleId,form])
  return (
    <div className="publish">
      <Card
        title={
          <Breadcrumb items={[
            { title: <Link to={'/'}>首页</Link> },
            { title: `${articleId ? '编辑' : '发布'}文章` },
          ]}
          />
        }
      >
        <Form
          form={form}
          labelCol={{ span: 4 }}
          wrapperCol={{ span: 16 }}
          initialValues={{ type: 0 }}
          onFinish={onFinish}
        >
          <Form.Item
            label="标题"
            name="title"
            rules={[{ required: true, message: '请输入文章标题' }]}
          >
            <Input placeholder="请输入文章标题" style={{ width: 400 }} />
          </Form.Item>
          <Form.Item
            label="频道"
            name="channel_id"
            rules={[{ required: true, message: '请选择文章频道' }]}
          >
            <Select placeholder="请选择文章频道" style={{ width: 400 }}>
              {channelList.map(item => (
                <Option key={item.id} value={item.id}>
                  {item.name}
                </Option>
              ))}
            </Select>
          </Form.Item>

          <Form.Item label="封面">
              <Form.Item name="type">
                <Radio.Group onChange={onTypeChange}>
                  <Radio value={1}>单图</Radio>
                  <Radio value={3}>三图</Radio>
                  <Radio value={0}>无图</Radio>
                </Radio.Group>
              </Form.Item>
              {imageType > 0 &&  
                <Upload
                  listType="picture-card"
                  showUploadList
                  action={'http://geek.itheima.net/v1_0/upload'}
                  name='image'
                  onChange={onChange}
                  fileList={imageList}
                  maxCount={imageType}
                >
                  <div style={{ marginTop: 8 }}>
                    <PlusOutlined />
                  </div>
                </Upload>
              }
          </Form.Item>

          <Form.Item
            label="内容"
            name="content"
            rules={[{ required: true, message: '请输入文章内容' }]}
          >
            {/* 富文件编辑器 */}
            <ReactQuill
              className="publish-quill"
              theme="snow"
              placeholder="请输入文章内容"
            />          
          </Form.Item>

          <Form.Item wrapperCol={{ offset: 4 }}>
            <Space>
              <Button size="large" type="primary" htmlType="submit">
                发布文章
              </Button>
            </Space>
          </Form.Item>
        </Form>
      </Card>
    </div>
  )
}

export default Publish